31 lines
619 B
JavaScript
31 lines
619 B
JavaScript
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var Token = require('../../tokenizer/token');
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var serializeAll = require('../../writer/one-time').all;
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var FONT_FACE_SCOPE = '@font-face';
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function removeDuplicateFontAtRules(tokens) {
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var fontAtRules = [];
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var token;
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var key;
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var i, l;
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for (i = 0, l = tokens.length; i < l; i++) {
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token = tokens[i];
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if (token[0] != Token.AT_RULE_BLOCK && token[1][0][1] != FONT_FACE_SCOPE) {
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continue;
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}
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key = serializeAll([token]);
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if (fontAtRules.indexOf(key) > -1) {
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token[2] = [];
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} else {
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fontAtRules.push(key);
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}
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}
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}
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module.exports = removeDuplicateFontAtRules;
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